Gas dispensing projectile

DETAILED DESCRIPTION What is claimed is: 1.
A gas dispensing projectile, comprising: (a) a piercing cone being a generally hollow structure formed with at least one opening in a side wall thereof; (b) collar means encircling the piercing cone and being movable longitudinally along the piercing cone; (c) base means connected to the piercing cone for containing a knockout gas supply means, and actuating means responsive to abrupt lodgment of said projectile within a material pierced by said piercing cone for releasing knockout gas from the supply means and enabling the gas to flow through the piercing cone and outwardly therefrom through said at least one opening; and (d) stop means pivotally secured to the base means and connected to the collar means for deployment, in response to movement of the collar means along the piercing cone, from a retracted position wherein the stop means extend generally along the piercing cone to an extended position wherein the stop means pivots outwardly from the base means into a maximum diameter position to thereby cause said abrupt lodgement of the projectile in said material and actuation of said actuating means.
2.
The projectile of claim 1, wherein said collar means is an annular member having an inner diameter sufficient to enable the collar means to translate along the piercing cone.
3.
The projectile of claim 1, wherein said piercing cone is formed with a plurality of said at least one opening substantially along its entire length.
4.
The projectile of claim 1, wherein said stop means includes a plurality of deployment panels each hinged at a rear end thereof to the base means and extending forwardly therefrom along the piercing cone.
5.
The projectile of claim 4, wherein substantially each said deployment panel is connected to said collar means with a connecting rod having one end pivotally secured to the collar means and another end pivotally secured to the associated deployment panel.
6.
The projectile of claim 5, wherein said another end is pivotally secured to the inner surface of the associated panel with hinge means formed intermediate opposite ends of said panel